Re: [Alsa-user] problem with ac3dec and winfast 6x (CM8738)

[Uwe W. <uwe...@we...>]

>>I have the same problem with my winfast 6x.
>>I think it's not about the a new chip revision but
>>the implementation of Leadtek..

> I doubt it. My card is a 'trust'. Besides there is little to implement 
> as everything is in one chip. I'm suspecting it is a dependency on 


but there are one interesting thing:
the chip is on serveral customer soundcards/mainboards
and here are three people (you, me and Johannes Schoeller)
with this problem (and nobody else ???)
and all of us got a Leadtek Winfast 6x ...

and it seems the Leadtek Winfast 4x (the 4 channel version) 
is working fine how Carsten Koch describes it in his AC3-howto
http://www.linuxdvb.tv/documentation/ac3sound.html
 

but in my case, it's not a real problem for me(!)
if the digital output works with the S16->U16 patch
analog can go to hell ;-)

so the (still unsolved) AC3 (SPDIF-raw) problem is more frustrating to me...
or depends it on the patch ????

however here are my listings:

> Alsamixer says it is a
> Card: C-Media PCI CMI8738-MC6

C-Media PCI CMI8738-MC6

> lspci -vvv gives:
> 00:08.0 Multimedia audio controller: C-Media Electronics Inc CM8738 (rev 10)
>     Subsystem: C-Media Electronics Inc CMI8738/C3DX PCI Audio Device
>     Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
> Stepping- SERR- FastB2B-
>     Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- 
> <TAbort- <MAbort- >SERR- <PERR-
>     Latency: 32 (500ns min, 6000ns max)
>     Interrupt: pin A routed to IRQ 12
>     Region 0: I/O ports at cc00 [size=256]
>     Capabilities: [c0] Power Management version 2
>         Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA 
> PME(D0-,D1-,D2-,D3hot-,D3cold-)
>         Status: D0 PME-Enable- DSel=0 DScale=0 PME-

lspci -vvv
02:09.0 Multimedia audio controller: C-Media Electronics Inc CM8738 (rev 10)
        Subsystem: C-Media Electronics Inc CMI8738/C3DX PCI Audio Device
        Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping+ SERR- FastB2B-
        Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- 
<TAbort- <MAbort- >SERR- <PERR-
        Latency: 32 (500ns min, 6000ns max)
        Interrupt: pin A routed to IRQ 9
        Region 0: I/O ports at b800 [size=256]
        Capabilities: [c0] Power Management version 2
                Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-
,D3hot-,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-


> Then, in proc/asound, a cat sndstat shows:
> Card config:
> C-Media PCI CMI8738-MC6 (model 55) at 0xcc00, irq 12

cat sndstat
Card config:
C-Media PCI CMI8738-MC6 (model 55) at 0xb800, irq 9


> cd to card0 and a cat cmipci shows:
> C-Media PCI
> 
> 00: 02 00 00 00
> 04: 00 0c 00 00
> 08: 03 00 29 00
> 0c: 00 00 00 08
> 10: c0 00 00 00
> 14: 00 00 a0 00
> 18: 00 00 00 04
> 1c: 00 00 fe ff
> 20: 10 40 00 00
> 24: 00 cb ff 02
> 28: ff ff ff ff
> 2c: ff ff ff ff
> 30: 00 00 00 00
> 34: 00 00 00 00
> 38: 00 00 00 00
> 3c: 00 00 00 00

cat cmipci:
C-Media PCI
00: 00 00 00 00
04: 40 00 00 00
08: 00 00 29 00
0c: 00 00 00 08
10: c0 00 00 00
14: 00 00 a0 00
18: 00 00 00 00
1c: cc ff ff ff
20: 10 40 80 00
24: 00 31 00 04
28: ff ff ff ff
2c: ff ff ff ff
30: 00 00 00 00
34: 00 00 00 00
38: 00 00 00 00
3c: 00 00 00 00
(whatever it means ;-)






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 Uwe Weissbach, Leipzig

mail:   uwe...@we...
pgp:    send mail with "pgp-request" in subject

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